Home / 140,132.68-210,136.50-51,324.28

Finding the Fourth Proportional to 140,132.68, 210,136.50 and 51,324.28

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Solution

The fourth proportional to 140,132.68, 210,136.50 and 51,324.28 is: 76,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,132.68 : 210,136.50 = 51,324.28 : x
  2. Step 2: Convert to fraction form
    140,132.68/210,136.50 = 51,324.28/x
  3. Step 3: Cross multiply
    140,132.68x = 210,136.50 × 51,324.28
  4. Step 4: Simplify right side
    140,132.68x = 10,785,104,564.22
  5. Step 5: Solve for x
    x = 10,785,104,564.22/140,132.68
  6. Step 6: Final answer
    x = 76,963.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.